Laboratory of Geodesy and Geomatics Engineering;
Department of Mineral Resources Engineering;
Technical University of Crete;
University Campus;
Chania 73100;
Crete;
Greece;
Department of Electronic and Computer Engineering;
Technical University of Crete;
University Campus;
Chania 73100;
Crete;
Greece;
Computer Vision and Decision Support Laboratory;
Production and Management Department;
Technical University of Crete;
University Campus;
Chania 73100;
Crete;
Greece;
visual queries; spatial topology; spatiotemporal queries; graph and sketch queries; query by example;